[cctalk] Re: what to do with our "treasures"

On 6/27/2024 10:09 PM, Bill Degnan via cctalk wrote: Regardless I think Sellam is on to something here, there is need for a service to manage the vintage computing collections of this who are not predisposed to do so themselves. At a minimum an objective consultation and report produced by an

[cctalk] Re: Chumba on discord

I'm not involved, Sellam, but just the ignore the trolls.  Life is too short. On 6/25/2024 9:33 PM, Sellam Abraham via cctalk wrote: On Tue, Jun 25, 2024 at 7:29 PM Eric Moore via cctalk wrote: Sellam joined the ccmp discord as "Chumba" and, among other things, claimed long covid is not

[cctalk] Re: Pragmatically [was: Experience using an Altair 8800 ("Personal computer" from 70s)]

On 5/28/2024 6:16 PM, Fred Cisin via cctalk wrote: On Wed, 29 May 2024, Adrian Godwin wrote: As a child. my parents weren't sufficiently enamoured of televisions to buy one, but I was given some old ones. The one on the bottom had working sound and the one on the top had working video.

[cctalk] FTGH: (3) Qualstar 1260 9 track tape drives pertec interface

2 units working when properly stored a few years ago.  1 unit, parts unit. Must take all 3. Tested successfully only with a PC and a VAX. Located in Frederick, Maryland, USA

[cctalk] Re: Apple 1

On 8/25/2023 9:46 AM, Gavin Scott via cctalk wrote: I feel like people are over-thinking the Apple 1 thing. Apple made a lot of people rich, and I think the number of rich Apple people who want to be able to throw parties and say stuff like, "Oh, yes, that's my Apple I that I paid a million

[cctalk] Re: First non-IBM PC-DOS Compatible PC

On 6/6/2023 10:22 AM, Chuck Guzis via cctalk wrote: On 6/6/23 04:25, Bill Degnan via cctalk wrote: There were a articles in the more technical journal-type mags 1981/82 that discussed porting IBM DOS to non IBM 8088 systems that go into the mechanics of it. DOS v 1.25 was the OEM version for

[cctalk] Re: Getting floppy images to/from real floppy disks.

On 5/23/2023 5:27 PM, Sellam Abraham via cctalk wrote: Tony, You are extraordinarily tedious. Sellam He's also very funny, if you like dry British humor )

[cctalk] Re: Getting floppy images to/from real floppy disks.

On 5/22/2023 5:38 AM, Tony Duell via cctalk wrote: I hereby formally retract my erroneous suggestion of a "386 98,SP2 desktop with floppies and USB", and replace my suggestion with: "a PC with USB and floppies", and let Tony decide what vintage to use. Fully concur. If it were me, I'd probably

[cctalk] Re: Computer of Thesus (CRT Risk)

On 1/24/2023 12:14 PM, Steve Lewis via cctalk wrote: To me, I'm somewhat concerned on the "health risk" of CRTs - I know there is no direct evidence about it. But they're fundamentally like old radar systems, using a directed beam. I'm a bit rusty on the subject, but as far as I understand

[cctalk] Re: Computer of Thesus

Hush, contact me off-list. I have two DEC PDP-11/05's for sale, if that's of any interest. On 1/23/2023 4:29 PM, h...@dec.dog via cctalk wrote: ... — .hush Got interesting stuff to sell? Let me know! Looking for DEC, IBM, CDC, SGI, Data General, and more! On Monday, Jan 23, 2023 at 4:18

[cctalk] Re: Computer of Thesus

On 1/23/2023 2:28 PM, Chris via cctalk wrote: @ Mike Stein Not everything is criticism. I only corrected a rather obtuse notion about people replacing mechanical drives with solid state ones. Everyone would love to use their original equipment if it was practical. I for 1 have NO luck

[cctalk] Re: Old Silicon Valley poster

On 12/11/2022 7:25 PM, John Foust via cctalk wrote: Their web site locator didn't specifically let me find which offices can do large format scanning. It also didn't say what resolution they can do. I have an architect client who'd let me use his blueprint scanner/printer, but I think it's

[cctalk] Re: LC:M+L (Living Computer Museum)

On 10/31/2022 6:31 PM, Rich Alderson via cctalk wrote: ... LCM+L closed its doors to the public in March 2020... This project was the response to the original order simply to turn everything off. We pointed out vociferously how much damage that would do to the dinosaurs, reminding the

Re: HP 9915A failed 8048

On 2022-02-25 16:09, js--- via cctalk wrote: Hi, folks. I've a HP 9915A computer with an interesting problem. The motherboard utilizes a ceramic Intel D8048 chip. The problem is that this 8048 has a crack right across the top middle of it, and half of the top of the chip has

Re: HP 9915A failed 8048

On 2/26/2022 3:21 PM, Tony Duell via cctalk wrote: On Sat, Feb 26, 2022 at 5:19 PM js--- via cctalk wrote: As the chances of success are highly improbable, looks like I'm SOL on this particular motherboard. My bench is rather full at the moment and will be for a few more weeks

Re: HP 9915A failed 8048

On 2/25/2022 5:09 PM, Will Cooke via cctalk wrote: On 02/25/2022 2:23 PM Paul Berger via cctalk wrote: The 8048 is a mask programmed part, there is an EPROM version 8748. While the 8048 is mask programmed I believe that the contents of the ROM can be dumped. As Paul said, the 8048 is

HP 9915A failed 8048

Hi, folks. I've a HP 9915A computer with an interesting problem. The motherboard utilizes a ceramic Intel D8048 chip. The problem is that this 8048 has a crack right across the top middle of it, and half of the top of the chip has begun to separate. Powering up the machine

Re: 11/83 operating system load update -2

On 2/23/2022 12:38 PM, Ethan Dicks via cctalk wrote: Rod, My memory is that programs like putr need to run on "real" DOS, not a DOS window. So if you are trying to run putr without booting to MS-DOS 6.2 or older, that could be the source of your problems with it. He should be able to

Re: 11/83 operating system load update -2

On 2/22/2022 9:29 PM, Rod Smallwood via cctalk wrote: Hi Well I have had a huge response to my request. I am unsure as to if I have defined the problem properly. Rod, you've defined the problem well enough. Have you read the PUTR manual thoroughly? As long as your hardware is OK,

Re: Installing an operating system on the 11/83 - update.

On 2/22/2022 7:00 PM, Ray Jewhurst wrote: I read that you can indeed use a standard 1.2 Meg drive and that you can also use DSHD 5.25 disks in place of RX50s. Is there any truth in this? If there is it will be much easier and cheaper to make disks for my Rainbow. As Chuck noted, I'd

Re: Installing an operating system on the 11/83 - update.

On 2/22/2022 6:42 PM, Warner Losh wrote: On Tue, Feb 22, 2022 at 4:36 PM js--- via cctalk <mailto:cctalk@classiccmp.org>> wrote: Rod, Not sure an RX33 (if 1.2MB equivalent) would write working RX50 800k (double density) disks. Very different drives.

Re: Installing an operating system on the 11/83 - update.

On 2/22/2022 11:20 AM, Rod Smallwood via cctalk wrote: Hi All I did find some RX50 images of the MicroRSX distribution. So I fired up my DEC Celebris FX. It runs W95 and has a 3.5 inch floppy, a real RX33 5.25 inch drive and a CD-R. Its accessible on my network so getting

Re: Installing an operating system on the 11/83 - update.

Rod, Not sure an RX33 (if 1.2MB equivalent) would write working RX50 800k (double density) disks. Very different drives. I've successfully put an actual RX-50 drive on my PC, and written RX-50 images using PUTR. You might try that route. - John Singleton On 2/22/2022 11:20 AM,

Re: Ultrix-11

On 8/15/2021 10:08 AM, Bill Gunshannon via cctalk wrote: On 8/15/21 12:45 AM, Warner Losh via cctalk wrote: Distributions/DEC/Ultrix-11/Fred-Ultrix3 in the tuhs archive has complete instructions as well as a program to build the ultrix tapes It took a day because I wanted to test it

Re: HP 9817 Usage

On 5/26/2020 10:30 AM, TangentDelta via cctalk wrote: Hello! I have an HP 9817 and its accompanying 9133D disk drive unit. The disk drive seems like a rather large can of worms, so I've been ignoring it. I re-capped the 9817's power supply. It powers up and it passes all of its

Re: Alternative Monitor for VAXmate

On 5/23/2020 8:45 AM, Rob Jarratt via cctalk wrote: As it looks like I am not going to be able to repair the monitor board for my VAXmate I am wondering if I can do anything with the outputs from the I/O board to drive an external monitor instead. ... I had a go at building this

Re: HPE OpenVMS Hobbyist license program is closing

On 3/10/2020 8:48 AM, Bill Gunshannon via cctalk wrote: On 3/10/20 2:31 AM, Dave Wade via cctalk wrote: -Original Message- From: cctalk On Behalf Of Rod Smallwood via cctalk Sent: 10 March 2020 04:14 To: Fred Cisin via cctalk Subject: Re: HPE OpenVMS Hobbyist license

Re: Box of HP 1000 series MUX cards - 12040

On 7/14/2019 12:41 PM, Guy Dunphy via cctalk wrote: At 12:38 AM 14/07/2019 -0400, Jesse Dougherty wrote: Whats your deal dude? I'm not trolling anyone. I have hundreds of these boards here.. I don't need 170 HP 1000 Series MUX cards. They just don't sell that often for me to hold on to.

Re: George Keremedjiev

On 11/21/2018 5:46 PM, Bill Gunshannon via cctalk wrote: On 11/21/18 5:19 PM, Fred Cisin via cctalk wrote: Ed, It is YOUR mail program that is doing the extraneous insertions, and then not showing them to you when you view your own messages. ALL of us see either extraneous characters, or

Re: Bill Godbout

On 11/12/2018 7:56 PM, Chuck Guzis via cctalk wrote: On 11/12/18 1:39 PM, Fred Cisin via cctalk wrote: Google has no mention. Yet. How can we confirm? Bill's family confirms and has set up a GoFundMe page for his wife and son: https://www.gofundme.com/godbouttuckcampfirerelieffund

Re: Selling keyboards without the terminal

On 10/19/2018 10:34 AM, Bill Degnan via cctalk wrote: Here is a great example of why the keyboards and terminals are getting separated https://www.ebay.com/itm/IBM-3101-beam-spring-keyboard-purchased-new-in-1982/123422383512?hash=item1cbc8c1d98:g:sCkAAOSwfbhbwQvU Note the price $2000 so far.

Re: Teac Mt-2st/20D-12-u

Replied privately. On 10/7/2018 9:56 AM, allison via cctalk wrote: Group, I have one of these TEAC Phillips tape drives. I have a manual: Is tape (media) available for it? What was it typically used in? How much storage was it? I was digging for some paerts and found it in my

Re: Preserved LGP-30

On 7/3/2018 3:58 AM, Christian Corti via cctalk wrote: On Mon, 2 Jul 2018, "j...@cimmeri.com" wrote: Seriously! Liam, don't you know that handling paper with your hands transfers oils to it and hastens its decay? This is why gloves are worn to handle old paper artifacts. *lol*

Re: Preserved LGP-30

ing people not to touch museum exhibits makes sense to me. On Mon, 2 Jul 2018, js--- via cctalk wrote: Seriously! Liam, don't you know that handling paper with your hands transfers oils to it and hastens its decay? This is why gloves are worn to handle old paper artifacts. Seriously! Don't

Re: Preserved LGP-30

On 7/2/2018 7:51 AM, Paul Koning via cctalk wrote: On Jul 1, 2018, at 10:29 AM, Liam Proven via cctalk wrote: The Moravian Galley in Brno has an exhibition on "Computer Art 1968". The only actual computer is a very well-preserved German LGP-30. I took a few photos of it yesterday... and

Re: New Listings for Sellam's Collection Sales

Sellam, emailed you a few times -- no reply.. check your spam folder. Hi Folks. I've reorganized my sales listings into a Google Sheets set. The introductory page is here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hiX0pNmy48/edit#gid=0 Use the tabs on

Re: eBay search fail

On 5/1/2018 11:26 AM, Noel Chiappa via cctalk wrote: > From: js > To take a suggestion from your playbook, I'd try asking eBay - 'I'm > getting incorrect search results. Why?' Yeah, that would be something to try, but I was wary of stirring up trouble - eBay might decide

Re: eBay search fail

On 5/1/2018 10:19 AM, Noel Chiappa via cctalk wrote: Come on people, please i) try doing some actual research to see if theories hold water, don't just quickly post, and ii) read prior posts thoroughly. This is your thing to research. Please take suggestions for what they are. Searching

Re: eBay search fail

It could possibly be the "-" sign. I use that to exclude tokens from a search. So "pdp -parts" should list all pdp items that are NOT parts. - J. On 5/1/2018 8:44 AM, Noel Chiappa via cctalk wrote: > From: W2HX > I filter on category "Computers/tablets& Networking." It

Re: HP 9816 CP/M-68K

On 2/12/2018 3:52 PM, Glen Slick via cctalk wrote: On Mon, Feb 12, 2018 at 12:34 PM, Eric Smith via cctalk wrote: Format a track with the sector size that occurs later on the track, with dummy sectors ahead of them and gap sizes selected to position them properly. Start

Re: Maxtor full-height 5.25" drives of death

On 2/9/2018 12:25 PM, Chuck Guzis via cctalk wrote: On 02/09/2018 05:20 AM, allison via cctalk wrote: At the other extreme I have over a dozen Quantum D540s (RD52 31mb full height) that are really old and getting older and still work without issues. Some of those have sat on the shelf for

Re: DEC tape drives and cards

On 1/6/2018 5:51 AM, shad via cctalk wrote: Hello, I have some doubt about DEC tape units and related interfaces. What I know about (right or wrong, please correct): - TU80 is a Pertec drive, it needs M7454 (unibus, TS11 driver) which is a modified Dilog DU132. No option for QBUS. - TS05

Re: ID board Dilog SU723A

On 1/8/2018 3:03 PM, shad via cctalk wrote: Hello, I also have a Dilog SU723A, but never managed to find any docs for it. My board is revision D. It works be very nice to find something. As the MSCP / TMSCP selection is only a matter of firmware, I wouldn't be surprised if the MSCP

Re: Argh--my old faithful HP16C is failing!

On 12/24/2017 12:14 AM, Curious Marc via cctalk wrote: I did not find a good emulation on the PC. There is one that had a good demo but costs $20, and I was never able to buy it, their buying site has a bug. Marc http://hp15c.com/

Re: RX02 Difficulties

On 12/8/2017 2:13 PM, Aaron Jackson via cctalk wrote: I wonder if there's a problem with the floppy you are using? Remember, the RX0x drives can't hard reformat the floppies (as in, write the sector headers), so if the floopy has a problem, you can't fix it with the RX02. Noel

Re: HP 900 model 300 monitor

On 10/1/2017 12:02 PM, Tony Duell via cctalk wrote: On Sun, Oct 1, 2017 at 5:18 PM, js--- via cctalk<cctalk@classiccmp.org> wrote: You need a 25khz monitor. Here's a list I've compiled over the years. 25khz 640x400 SOG monitors HP 98204A (used with 82913A 12" 640x240 a

Re: HP 900 model 300 monitor

You need a 25khz monitor. Here's a list I've compiled over the years. 25khz 640x400 SOG monitors HP 98204A (used with 82913A 12" 640x240 and 82912A 9" 640x240 monitors) HP 98204B (used with 35721 14" 640x400 and 35731 12" 640x400 monitors) HP 98543A (used with 35741 12" 640x400 RGB

Re: formatting MFM drives on a IBM PC

On 9/29/2017 9:54 PM, Chuck Guzis via cctalk wrote: On 09/29/2017 07:04 PM, Warner Losh via cctalk wrote: I think there are two barriers to that. No sata is a cards. And BIOS of that era still required you to tell it the chs for the drive... So, let's change the acronym to SSATA - "Serial

Re: Why women were the first computer programmers

.. On 8/24/2017 6:14 PM, Toby Thain via cctalk wrote: Please note that I said to keep things in a historical perspective and on-topic. I don't think that is saying sexism is ok. On a technical list with adults, I believe that when someone posts something on-topic which has portions you do

Re: CFL

On 5/22/2017 6:39 AM, Diane Bruce via cctalk wrote: On Mon, May 22, 2017 at 07:20:34AM -0400, Ken Seefried via cctalk wrote: And if you break one you have to call HAZMAT. You did realize that, didn't you? They contain mercury and any breakage requires professional remediation by law!!

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

On 5/5/2017 2:33 PM, Fred Cisin via cctalk wrote: On Fri, 5 May 2017, Bill Gunshannon via cctalk wrote: But I thought the problem was that most disk controllers can't do RX02. Everybody doesn't have a Catweasel or Cryoflux. That's right. Chuck's suggestion would require that somebody who

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

On 5/4/2017 6:39 PM, Terry Stewart via cctalk wrote: And yet, if there were an RX02 somewhere on this VAX, I don't believe you'd be able to read them at all... RX02 seeming more likely with a VAX. Interestingly PUTR, does seem to accommodate this, and the kind of system I have set up (i.e.

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

On 5/4/2017 6:16 PM, Terry Stewart via cctalk wrote: If these are from a VAX, could they be microcode disks for a 11/780? There was a RX01 attached via a LSI-11 as console. And yet, if there were an RX02 somewhere on this VAX, I don't believe you'd be able to read them at all... RX02

Re: PDP-8/a cleaning

On 4/25/2017 11:34 AM, Pete Turnbull via cctalk wrote: On 25/04/2017 15:55, Tapley, Mark via cctalk wrote: On Apr 25, 2017, at 8:51 AM, allison via cctalk wrote: Even after all that I'd still dry it with a little heat (oven at 180F or a clean empty container in

Re: AC magnetic field strengths

That is in fact how I spot degauss CRT screens, but using a flat wood boring bit (metal, obviously, instead of a paint stick) with the magnet stuck on the end, spun around with a drill. - J. On 3/16/2017 6:37 PM, dwight via cctalk wrote: It sounds like one can make a fine tape degausser by

Re: Pair of Twiggys

On 3/15/2017 11:35 AM, Liam Proven via cctalk wrote: On 15 March 2017 at 14:17, geneb via cctalk wrote: Well hooray for Xerox. Apple still obtained the concepts from Xerox, regardless of the mechanism. Only some and only very basic ones. Icons for files, the "OK"

Re: Looking for Apollo Workstations for TV show

On 3/13/2017 3:24 PM, Toby Thain via cctalk wrote: On 2017-03-13 4:15 PM, Al Kossow via cctalk wrote: If it says "Earth is destroyed, the programmers failed" You appear to have no clue what "Halt and Catch Fire" is. ...But if the TITLE of the show says "stuff catches fire" that's a